I have a requirement in my website that a user can download a file of size - 150 MB. The number on concurrent requests go up along with number of users enrolled in my website. Am using struts framework to support this download concept. Do I need to configure Tomcat server to support multiple downloads of a that file? Please advise me on this.

Tomcat's DefaultServlet supports partial download out of the box. You just need to make sure DefaultServlet serves your file (it does so by default).
Sergei.
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